9793. Afterwards I talked to spirits who had come from that planet. I told them a number of things about our planet, for example, the existence here of branches of knowledge that are not found anywhere else, such as those of astronomy, geometry, mechanics, physics, chemistry, medicine, optics, and philosophy; and in addition to these, the existence of skills unknown anywhere else, such as those of ship-building, metal-casting, writing things on sheets of paper, printing and publishing these things, and in this way communicating them to all throughout the planet, as well as preserving them for thousands of years to come. I told them that by these skills the Word received from the Lord has been so published and preserved, and that the revealed Word is therefore going to remain forever on this planet, see 9350-9360.